please use it! If we type enough serial numbers, we can make some conclusion regarding Atari computer production!

like Mark_G suggested, there is "German tank problem" calculation if you have enough serial numbers in database.

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Also, if you have any suggestion, please write it here and I will include them first in ToDo list than in site. Also please report any errors on site or in database.And last, if someone want, I can share PHP source of web site.

---I am not sure for such a big list because many user would not know what to chose (SF 314 with or without microcontroller, or with cimple board... or SC 1224 by JVC, Samsung or Goldstar) - these information are not visible on outside of box so I believe many would hesitate to enter information in database.

For now I put everything that 1st1 suggested. Please take a look and give me more opinions. (note that text in brackets is only informations - it would not be written in database)here you can see all models: http://milan.kovac.cc/atari/chipmunk/models.txt

- ability so sort by each column- selection of keyboard layout and TOS version in combo box (possibly with an option to enter its own value)- blitter socket and blitter should be one option and combo box again -- "present (on mb)", "present (in socket)", "not present (with socket)", "not present (available space on mb)" and "not present"- ability to enter "Unknown" and "N/A" (it's getting messy very quickly!)- remove useless fields like "state", "bought from", "as a", "case", perhaps "time of purchase" as well (can't think of any meaning to that)

but please, I do not know what are all these options! Obviously I am not aware of all these blitter variants...

present (on mb) - this is blitter in STe? Is it Surface-mount technology (SMT)?present (in socket) - this is socket. clear.present (integrated) - how integrated? In another IC like in of Falcon, inside COMBLE chip? Does Mega STe has integrated blitter?-- EDIT: now I see: GST MCU in Glue and MMU in one chip in Mega STe.not present (with socket) - cleat.not present (available space on mb) - there is no socket, just "pads" on motherboard?not present - nothing is present: neither pads neither socket? This is case with some very first STs?

but please, I do not know what are all these options! Obviously I am not aware of all these blitter variants...

present (on mb) - this is blitter in STe? Is it Surface-mount technology (SMT)?present (in socket) - this is socket. clear.present (integrated) - how integrated? In another IC like in of Falcon, inside COMBLE chip? Does Mega STe has integrated blitter?-- EDIT: now I see: GST MCU in Glue and MMU in one chip in Mega STe.not present (with socket) - cleat.not present (available space on mb) - there is no socket, just "pads" on motherboard?not present - nothing is present: neither pads neither socket? This is case with some very first STs?

As it is on the website is very confusing, it's hard to spot difference between present (on mb) and present (integrated).

After some thinking I think the right wording is this:

present (separate Blitter IC and GST-MCU) -- as in MegaST and later modelspresent (integrated with the GST-MCU) -- as in later STE modelspresent (in socket)present (soldered) -- ? I don't know, it's hard to tell the difference between this and "present (separate Blitter)", I'd leave it outnot present (only socket)not present (smd pads on mb)not present (without smd pads on mb)

As you correctly pointed out, we don't need "Unknown" field, the user can leave it blank.

How about a bulk upload of lists per CSV file? You can provide a souce file (csv, xls(x), ...) which describes the rows, and one can create a list of his many collected atari computers and peripherials (for example with Excel or LibreOffice calc), export to CSV (comma separated), and upload it to your site and imported to the sheet.

(xls(x) as source file would have the advantage that you already can define standard preselections, like for example the blitter option)